Question

If f(x)=3x+8, for what is the value of "a" is f(a)=a?

Answer 1

you mean what is the value of a when f(a)=a

Answer 2

\[f(a)=3(a)+8\]
but \[f(a)=a\]
so they are equall??????

Answer 3

-4?

Answer 4

yes

Answer 5

yes that would work

Answer 6

@Jonask
a=3a+8
-8=2a
a=-4

Answer 7

yes thats how we can work it out,cool